The antisynthetase syndrome.

Area of Science:

• Immunology
• Pulmonology
• Rheumatology

Background:

• Antisynthetase syndrome is a rare autoimmune disorder characterized by polymyositis, interstitial lung disease, and specific autoantibodies.
• Early diagnosis and treatment are essential for managing this multi-system disease.

Observation:

• A patient presented with respiratory symptoms after fume exposure, initially treated for hypersensitivity pneumonitis.
• Following treatment, the patient developed extrapulmonary symptoms suggestive of an autoimmune condition.

Findings:

• The patient was diagnosed with antisynthetase-associated interstitial lung disease and myositis.
• This case highlights a potential link between fume exposure and the onset of antisynthetase syndrome.

Implications:

• Anchoring bias in diagnosis can delay critical treatment for autoimmune diseases.
• Prompt recognition and management of antisynthetase syndrome can mitigate significant patient morbidity and mortality.